ARC SPRAYING PISTOL Russian patent published in 2003 - IPC

FIELD: application of coats by spraying filler material in form of wire; application of wear-resistant and friction coats in restoration of parts. SUBSTANCE: proposed pistol works on concentrated liquid hydrocarbon fuel; proposed spraying pistol includes fuel burning unit with electrodes mounted in insulating platform along housing. Air duct cover is secured by means of union nut. Located in circular chambers are fuel nozzles whose end faces are sunken relative to end face by 6-7 mm. Fuel nozzles are communicated with fuel passage of bush through holes. Delivery of fuel from passage communicated with tank is regulated by means of needle valve. Hole between fuel passages may be closed by shut-off valve. Central elliptical nozzle is provided between chambers. EFFECT: improved quality of coat; reduced consumption of fuel. 3 dwg